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80 lines
3.1 KiB
CoffeeScript
80 lines
3.1 KiB
CoffeeScript
log = require 'winston'
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async = require 'async'
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errors = require '../../commons/errors'
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scoringUtils = require './scoringUtils'
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LevelSession = require '../../levels/sessions/LevelSession'
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TaskLog = require './ScoringTask'
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module.exports = dispatchTaskToConsumer = (req, res) ->
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yetiGuru = {}
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async.waterfall [
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checkSimulationPermissions.bind(yetiGuru, req)
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receiveMessageFromSimulationQueue
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changeMessageVisibilityTimeout
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parseTaskQueueMessage
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constructTaskObject
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constructTaskLogObject.bind(yetiGuru, getUserIDFromRequest(req))
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processTaskObject
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], (err, taskObjectToSend) ->
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if err?
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if typeof err is 'string' and err.indexOf 'No more games in the queue' isnt -1
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res.send(204, 'No games to score.')
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return res.end()
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else
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return errors.serverError res, "There was an error dispatching the task: #{err}"
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scoringUtils.sendResponseObject res, taskObjectToSend
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checkSimulationPermissions = (req, cb) ->
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if req.user?.get('email')
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cb null
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else
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cb 'You need to be logged in to simulate games'
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receiveMessageFromSimulationQueue = (cb) ->
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scoringUtils.scoringTaskQueue.receiveMessage (err, message) ->
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if err? then return cb "No more games in the queue, error: #{err}"
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if not message? or message.isEmpty() then return cb 'Message received from queue is invalid'
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cb null, message
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changeMessageVisibilityTimeout = (message, cb) ->
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message.changeMessageVisibilityTimeout scoringUtils.scoringTaskTimeoutInSeconds, (err) ->
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cb err, message
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parseTaskQueueMessage = (message, cb) ->
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try
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messageBody = message.getBody()
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unless typeof messageBody is 'object'
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messageBody = JSON.parse messageBody
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cb null, messageBody, message
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catch e
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cb "There was an error parsing the task. Error: #{e}"
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constructTaskObject = (taskMessageBody, message, callback) ->
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async.map taskMessageBody.sessions, getSessionInformation, (err, sessions) ->
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if err? then return callback err
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taskObject = messageGenerated: Date.now(), sessions: (scoringUtils.formatSessionInformation session for session in sessions)
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callback null, taskObject, message
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getSessionInformation = (sessionIDString, callback) ->
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selectString = 'submitDate team submittedCode teamSpells levelID creator creatorName transpiledCode submittedCodeLanguage totalScore'
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LevelSession.findOne(_id: sessionIDString).select(selectString).lean().exec (err, session) ->
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if err? then return callback err, {'error': 'There was an error retrieving the session.'}
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callback null, session
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constructTaskLogObject = (calculatorUserID, taskObject, message, callback) ->
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taskLogObject = new TaskLog
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createdAt: new Date()
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calculator: calculatorUserID
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sentDate: Date.now()
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messageIdentifierString: message.getReceiptHandle()
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taskLogObject.save (err) ->
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callback err, taskObject, taskLogObject, message
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getUserIDFromRequest = (req) ->
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if req.user? then return req.user._id else return null
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processTaskObject = (taskObject, taskLogObject, message, cb) ->
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taskObject.taskID = taskLogObject._id
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taskObject.receiptHandle = message.getReceiptHandle()
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cb null, taskObject
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